productplots: Product Plots for R

Framework for visualising tables of counts, proportions
and probabilities. The framework is called product plots, alluding to
the computation of area as a product of height and width, and the
statistical concept of generating a joint distribution from the
product of conditional and marginal distributions. The framework,
with extensions, is sufficient to encompass over 20 visualisations
previously described in fields of statistical graphics and 'infovis',
including bar charts, mosaic plots, 'treemaps', equal area plots and
fluctuation diagrams.